The statute of limitations for tortious interference with contract and with prospective business relations is three years from the date when the plaintiff first sustains damages. Here, the causes of action accrued on the date when the complaint alleges that plaintiff was terminated from his engagement with a nonparty.
Bandler v. DeYonker, NY Slip Op 05633 (1st Dep't July 11, 2019)
Here is the decision.